import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;

public class Draw extends Canvas implements Runnable{
int position = 10;
int end = getWidth();

 public Draw() {
 super();}
    
public void start()
{
Thread t = new Thread(this);
t.start();
}
public void run()
{
while(true)
{
if(position > end)
position = 0;
position++;
}repaint();
try{
Thread.sleep(20);}
catch(java.lang.InterruptedException zxz){};
}
public void paint(Graphics g)
{
int x = g.getClipWidth();
int y = g.getClipHeight();
g.setColor(0xffffff);
g.fillRect(0,0,x,y);
g.setColor(0,0,200);
g.fillRect(position,40,20,20);
}
}